I bought the phone from Chinese dealer without any customization and additional costs
- install hisuite (find it official download page)
- Downloaded this package g700 tools
- i've upgraded to the latest rom 130
- obtained root with eroot.exe (first flag debugging in storage)
- I've installed the mobile app uncle m44_toolbox_20130809_v2.9.5_ru.apk (before authorize unknown origin)
- I've installed the cwm recovery with mobileuncle
- Via recovery I've installed gapps signed
- Wipe cahe and data. I recommend to put the original recovery if you need to carry out a new update
if you are coming from a cwm recovery and want to install or force installation of the official rom change your recovery into stock one using mobileuncle
place the dload folder containing the official rom in the root of sd removable
1 Disconnect your phone with your computer or other device (such as chargers) connection and shutdown.
2 Press and hold the volume up and down keys, then press the power button.
3 after coming off the boot screen, release the power button and continue holding the volume down key until you see the update interface, then release the volume up and down. The update process takes about two minutes.
thanks to 4pda users and their experiments (and sometime..experience)
the key thanks is working again